CN103038940B

CN103038940B - Controlling a beamforming antenna using reconfigurable parasitic elements

Info

Publication number: CN103038940B
Application number: CN201180038001.XA
Authority: CN
Inventors: 史若克·M·阿里; 詹姆士·E·华登
Original assignee: BlackBerry Ltd
Current assignee: Maliki Innovation Co ltd
Priority date: 2010-06-22
Filing date: 2011-06-21
Publication date: 2015-07-01
Anticipated expiration: 2031-06-21
Also published as: EP2403057B1; EP2403057A1; CN103038940A; US8446318B2; WO2011163194A1; CA2802332C; CA2802332A1; US20110309980A1

Abstract

Methods, devices, and systems for controlling a beamforming antenna with reconfigurable parasitic elements is provided. A method of controlling a beamforming antenna in a wireless device comprises calculating the input impedance of the beamforming antenna using an adaptive matching network, wherein said beamforming antenna includes a primary radiating element and one or more reconfigurable parasitic elements, and said primary radiating element and said reconfigurable parasitic elements cooperatively receive, transmit, or both a radio frequency signal; determining the input impedance of the beamforming antenna is outside a tolerance; recognizing the environment of the wireless device; selecting a portion of said reconfigurable parasitic elements using the input impedance of the beamforming antenna, a predetermined input impedance observation table, said recognized environment, or any combination thereof; and updating the beamforming antenna by electrically connecting, electrically coupling, or both said selected portion of said reconfigurable parasitic elements to said primary radiating element.

Description

Use reconfigurable parasitic antenna to control beam formed antenna

The cross reference of related application

There is not related application.

Technical field

The present invention relates generally to antenna, and relates to the reconfigurable parasitic antenna of use particularly to control beam formed antenna.

Background technology

Extensive laying wireless communication system is to provide the such as various service relevant to voice-and-data.Typical wireless communication system comprises the multiple access communication network allowing the user of wireless device to share common network resource.These networks typically need multiband antenna, for transmitting and receiving radio frequency (" RF ") signal from wireless device to infrastructure (such as base station).The example of these networks is the global system for mobile communicationss (" GSM ") operated between 890MHz and 960MHz; The digital communication system (" DCS ") operated between 1710MHz and 1880MHz; The PCS Personal Communications System (" PCS ") operated between 1850MHz and 1990MHz; And the Universal Mobile Telecommunications System operated between 1920MHz and 2170MHz (" UMTS ").

Emerging and following wireless communication system needs wireless device and infrastructure, to operate new communication pattern on different frequency bands, is used for supporting such as function and the more users of more high data rate, increase.The example of these emerging systems is single-carrier frequency division multiple access (" SC-FDMA ") system, OFDM (" OFDMA ") system and other similar systems.OFDMA system is supported by various technical standard, the such as access of Evolved Universal Terrestrial radio (" E-UTRA "), Wi-Fi, Worldwide Interoperability for Microwave intercommunication access (" WiMAX "), WiMAX (" WiBro "), Ultra-Mobile Broadband (" UMB "), Long Term Evolution (" LTE ") and other similar standards.

In addition, wireless device and infrastructure can provide extra function, and this needs to be used in other wireless communication systems that different frequency bands operates.The example of these other systems is WLAN (wireless local area network) (" the WLAN ") system, IEEE802.11b system and the Bluetooth system that operate between 2400MHz and 2484MHz; The wlan system operated between 5150MHz and 5350MHz, IEEE802.11a system and HiperLAN system; In the global positioning system (" GPS ") of 1575MHz operation; And other similar systems.

Broadband, low profile antenna is needed at a lot of wireless communication systems of government and industrial quarters.This system needs the antenna simultaneously supporting multiband.In addition, this system needs dual polarization to support polarization diversity, polarization frequency reuse or other similar polarization operations.

In addition, smart antenna (such as beam formed antenna) may be used for increasing capacity in a wireless communication system, reduces cochannel and adjacent-channel interference, raising scope, reduces transmitting power and alleviate multipath transmisstion effect.Smart antenna can by electromagnetism RF energy drag in preferred orientations, such as, towards the antenna of base station.Smart antenna is typically made up of multiple radiant element, and radiant element can be switched to customized configuration to form antenna pattern wave beam and to lead.

But smart antenna may suffer multiple restriction, comprise the performance caused with the situation of environmental correclation and reduce.This situation can be included near smart antenna and occur user or things; Multipath transmisstion effect; Wireless device is through the speed of network; And other similar effects.The impact of these ambient conditions may cause such as call drop, transmitted power level rising, data rate reduction, power consumption to raise and other similar effects.Therefore, expecting to have can the smart antenna of adaptive this ambient conditions.

Accompanying drawing explanation

Understand to allow those of ordinary skill in the art and implement the disclosure, referring now to by reference to the exemplary embodiment shown in accompanying drawing.In all of the figs, similar Reference numeral represents identical or functionally similar element.According to the disclosure, accompanying drawing combines with detailed description, defines a part for specification, and for illustrating exemplary embodiment further and explaining various principle and advantage, wherein:

Fig. 1 is the example of wireless communication system.

Fig. 2 shows the block diagram of an embodiment of the wireless device according to each scheme set forth here.

Fig. 3 shows the block diagram of an embodiment of the beam forming antenna systems of the wireless device according to each scheme set forth here.

Fig. 4 shows the block diagram of another embodiment of the beam forming antenna systems of the wireless device according to each scheme set forth here.

Fig. 5 shows the block diagram of another embodiment of the beam forming antenna systems of the wireless device according to each scheme set forth here.

Fig. 6 is each scheme according to setting forth here, uses reconfigurable parasitic antenna to carry out the flow chart of an embodiment of the method for adaptive beam formed antenna.

Fig. 7 is each scheme according to setting forth here, uses reconfigurable parasitic antenna to carry out the flow chart of another embodiment of the method for adaptive beam formed antenna.

Fig. 8 is each scheme according to setting forth here, uses reconfigurable parasitic antenna to carry out the flow chart of another embodiment of the method for adaptive beam formed antenna.

Fig. 9 is each scheme according to setting forth here, uses reconfigurable parasitic antenna to carry out the flow chart of another embodiment of the method for adaptive beam formed antenna.

Figure 10 shows the block diagram of another embodiment of the beam forming antenna systems of the wireless device according to each scheme set forth here.

Figure 11 shows the simulation result of the performance of an embodiment of the beam forming antenna systems according to each scheme set forth here.

It will be apparent to those skilled in the art that the element in accompanying drawing is illustrated to set forth, simplify and be further used for helping to improve the understanding to exemplary embodiment, and not necessarily draw in proportion.

Embodiment

Although following discloses for the illustrative methods in wireless communication system, equipment and system, it should be understood by one skilled in the art that instruction of the present disclosure is never limited to the exemplary embodiment illustrated.On the contrary, can consider to implement instruction of the present disclosure in alternative configuration and environment.Such as, although illustrative methods described herein, equipment and system are incorporated into line description with the configuration for above-mentioned wireless communication system, those of ordinary skill in the art will readily appreciate that illustrative methods, equipment and system may be used for other wireless communication systems, and can be configured to corresponding with these other systems as required.Therefore, although hereafter describe illustrative methods, the equipment using illustrative methods and system, those of ordinary skill in the art will understand, disclosed exemplary embodiment is not the unique channel realizing this method, apparatus and system, and drawing and description should be regarded as and are actually schematic, instead of restrictive.

Various technology described herein may be used for various wireless communication system.Various scheme described herein is presented the method, apparatus and system as comprising multiple assembly, element, parts, module, ancillary equipment etc.In addition, these method, apparatus and system can comprise or not comprise extra assembly, element, parts, module, external equipment etc.Be important to note that, term " network " and " system " can be used interchangeably.Relational language described herein, such as "up" and "down", " left side " and " right side ", " first " and " second " etc. only for distinguishing an entity or action and another entity or action, and can not necessarily require or imply this relation or the order of any practical between this entity or action.Term "or" is intended to the meaning representing inclusive "or" instead of repellency "or".In addition, its instruction singulative can be known unless specified otherwise herein or from the context, otherwise term " " is intended to the meaning representing one or more.Term described herein " electric coupling " (also referred to as " capacitive couplings ", " inductive couplings " or both) at least comprise coupling via Electric and magnetic fields (comprise and pass through electric insulated region).Term described herein " electrical connection " at least comprises by conductive path or by capacitor, is different from the connection by means of only electromagnetic induction.

Wireless communication system is typically made up of multiple wireless device and multiple base station.Base station also can be called node-B (" NodeB "), base station transmitting-receiving station (" BTS "), access point (" AP "), satellite, router or some other equivalent terms.Base station typically comprise to be connected with one or more antenna electric for one or more RF transmitter of wireless device communication, RF receiver or both.

The wireless device used in wireless communication system also can be called mobile radio station (" MS "), terminal, cell phone, cellular handset, personal digital assistant (" PDA "), smart mobile phone, Hand Personal Computer, desktop computer, laptop computer, flat computer, printer, Set Top Box, television set, wireless device or some other equivalent terms.Wireless device can comprise be connected with one or more antenna electric one or more RF transmitter, RF receiver or both, be used for and base station communication.In addition, mobile device can be fixing or movement, and has the mobile ability by cordless communication network.

Fig. 1 is the block diagram of the wireless communication system 100 according to various scheme described herein.In one embodiment, system 100 can comprise wireless device 101, base station 102, satellite 125, access point 126, another wireless device 127 or its combination in any.Wireless device 101 can comprise be electrically connected with memory 104 processor 103 (also referred to as coprocessor, controller or other similar terms), input-output apparatus 105, transceiver 106, short distance RF communication subsystem 109, another RF communication subsystem 110 or its combination in any, wireless device 101 can use these assemblies to realize various scheme described herein.Processor 103 can manage and control the integrated operation of wireless device 101.The transceiver 106 of wireless device 101 can comprise transmitter 107, receiver 108 or both.In addition, the transmitter 107 be associated with wireless device 101, receiver 108, short distance RF communication subsystem 109, other RF communication subsystems 110 or its combination can be electrically connected with antenna 141.

In the present example, wireless device 101 can comprise to carry out with base station 102, satellite 125, access point 126, other wireless devices 127 or its combination in any two way voice communication, bidirectional data communication or both.Voice communications versus data communications can be associated with using the identical or different network of such as identical or different base station 102.Used wireless communication system is depended in the detailed design of the transceiver 106 of wireless device 101.When wireless device 101 is carrying out bidirectional data communication with base station 102, such as text message can received by antenna 141, is processed, and be supplied to processor 103 by the receiver 108 of transceiver 106.

In FIG, short distance RF communication subsystem 109 also can be integrated in wireless device 101.Such as, short distance RF communication subsystem 109 can comprise bluetooth module, WLAN module or both.Short distance RF communication subsystem 109 can use for transmitting RF signal, receive RF signal or both antennas 141.Bluetooth module can use antenna 141 such as to communicate with other wireless devices 127 (such as having the printer of Bluetooth function).In addition, WLAN module can use antenna 141 to communicate with access point 126 (such as router or other similar devices).

In addition, other RF communication subsystems 110 also can be integrated in wireless device 101.Such as, other RF communication subsystems 110 can comprise the GPS of the antenna 141 using wireless device 101, to receive information from one or more gps satellite 125.In addition, other RF communication subsystems 110 can use the antenna 141 of wireless device 101, for transmitting RF signal, receive RF signal or both.

Similarly, base station 102 can comprise the processor 113 be electrically connected with memory 114 and transceiver 116, and base station 102 can make purpose processor 113 to realize various scheme described herein.The transceiver 116 of base station 102 can comprise transmitter 117, receiver 118 or both.In addition, the transmitter 117 be associated with base station 102, receiver 118 or both can be electrically connected with antenna 121.

In FIG, base station 102 can use antenna 141 and 121 in the uplink, and uses antenna 141 to communicate with wireless device 101 in the downlink with 121, and wherein antenna 141 and 121 is associated with wireless device 101 and base station 102 respectively.Up link represents the communication from wireless device to base station, and down link represents the communication from base station to wireless device.In one embodiment, base station 102 can use transmitter 117 and antenna 121 to initiate downlink information, and antenna 141 wherein can be used to receive this information by receiver 108 at wireless device 101 place.This information can be relevant to the communication link between base station 102 and wireless device 101.Once wireless device 101 receives this information on the uplink, wireless device 101 can process received information to produce the response relevant to received information.Transmitter 107 and antenna 141 can be used to beam back this response from wireless device 101 on uplink, and use antenna 121 and receiver 118 to receive this response in base station 102.

Fig. 2 shows the block diagram of an embodiment of the wireless device 200 according to each scheme set forth here.In fig. 2, wireless device 200 can comprise the processor 203 be electrically connected with the following: such as, transceiver 205, decoder 206, encoder 207, memory 204, navigation mechanism 211, display 212, transmitter 213, display covering 214, display controller 216, touch sensitive dis-play 218, actuator 220, transducer 223, auxiliary input/output subsystem 224, FPDP 226, loud speaker 228, microphone 230, short distance RF communication subsystem 209, another RF communication subsystem 210, subscriber identity module or removable user identity module (" SIM/RUIM ") interface 240, battery interface 242, other assemblies or its combination in any.Navigation mechanism 211 can be such as trace ball, direction plate, tracking plate, touch sensitive dis-play, roller or other similar navigation mechanisms.

In fig. 2, processor 203 can control and perform and the control of wireless device 200, operation or various functions that both are associated.Wireless device 200 can be powered by such as battery 244, alternating current (" AC ") source, another power supply or its combination in any.In fig. 2, wireless device 200 can use such as battery interface 242, accepts the electric energy from battery 244.Battery 244 can be such as chargeable battery, replaceable battery or both.Processor 203 can control battery 244 via battery interface 242.

In this embodiment, wireless device 200 can use the processor 203 be such as electrically connected with auxiliary input/output subsystem 224, FPDP 226, transceiver 205, short distance RF communication subsystem 209, another RF communication subsystem 210 or its combination in any, executive communication function, comprises data communication, voice communication, video communication, other communication or its combination in any.Wireless device 200 can such as communicate between network 250.Network 250 can be made up of such as multiple wireless device and multiple infrastructure.

In fig. 2, display controller 216 can with display covering 214, display 212 or both be electrically connected.Such as, display covering 214 and display 212 can be electrically connected with display controller 216, to form such as touch sensitive dis-play 218.Touch sensitive dis-play 218 also can be called touch-screen display, touch screen monitor, touch screen terminal or other similar terms.Processor 203 directly can control display covering 214, use display controller 216 controls display covering 214 indirectly or both.Processor 203 can the display 212 of wireless device 200, touch sensitive dis-play 218 or on both indication example as memory 210 in store e-file.

In the present example, wireless device 200 can comprise the transducer 223 be electrically connected with processor 203.Transducer 223 can be such as accelerometer sensor, inclination sensor, force snesor, optical sensor or its combination in any.In addition, transducer 223 can comprise identical or different multiple transducers.Such as, transducer 223 can comprise accelerometer sensor and optical sensor.Accelerometer sensor may be used for such as detecting the direction of gravity, gravity sensing reaction force or both.In addition, accelerometer sensor may be used for the placement of aiming at the upper detected wireless devices 200 of (alignment) (such as horizontal direction aligning) in various direction.Accelerometer sensor can comprise the cantilever beam and suitable deflection sensor circuit such as with quality inspection.Optical sensor can be identical or similar with the transducer used in such as desktop mouse.Alternatively, optical sensor can be such as camera lens.Processor 203 can be configured to process the consecutive image that caught by camera lens, and use these images with detected wireless devices 100 relative to the direction of object, surface or user, distance or both.Such as, processor 203 can be configured to process the consecutive image caught by camera lens, and uses these images to be placed on this equipment such as near the position of user's ear with the user of detected wireless devices 200.

In fig. 2, wireless device 200 can comprise subscriber identity module or removable user identity module (" SIM/RUIM ") card 238.SIM/RUIM card 238 can comprise such as user totem information, and it may be used for the user access network 250 allowing wireless device 200.SIM/RUIM card 238 can be electrically connected with SIM/RUIM interface 240, and wherein processor 203 can via SIM/RUIM interface 240 control SIM/RUIM card 238.User totem information can store in memory 204, and can be accessed by processor 203.

In this embodiment, wireless device 200 can comprise operating system 246 and software module 248, and it can be stored in computer-readable medium (such as memory 204).Memory 204 can be such as RAM, static RAM (SRAM) (" SRAM "), dynamic ram (" DRAM "), read-only memory (" ROM "), volatile memory, nonvolatile memory, register memory, harddisk memory, virtual memory, other memories or its combination in any.The program command that processor 203 can store in execute store 204, this program command is associated with the combination of operating system 246, software module 248, other program command or program command.Operating system 246, software module 248, data, electronic document or its combination in any via transceiver 205, auxiliary input/output subsystem 224, FPDP 226, short distance RF communication subsystem 209, another RF communication subsystem 210 or its combination in any, can be loaded in memory 204 by processor 203.

Fig. 3 shows the block diagram of an embodiment of the beam forming antenna systems 300 of the wireless device according to each scheme set forth here.In figure 3, system 300 can comprise beam formed antenna 341, adaptive matching networks 342, transceiver 305, use detector 344, transducer 323, controller 303, commutation circuit 347, other elements or its combination in any.Beam formed antenna 341 can comprise the main radiating element with one or more reconfigurable parasitic antenna.Beam formed antenna 341 can form the electromagnetic antenna pattern beam from beam formed antenna 341 radiation and lead, and transmits, Received signal strength or both quality such as to improve.Such as, when the overlay area through base station, beam formed antenna 341 can deflect antenna pattern wave beam adaptively makes it towards this base station.In addition, beam formed antenna 341 can lead to antenna pattern wave beam the user that makes it away from the wireless device be associated, to reduce the amount of the electromagnetic energy that this user absorbs.Equally, by the reception antenna leading to make it towards such as base station to the antenna pattern wave beam of beam formed antenna 341, the cochannel of other wireless devices reception or the amount of adjacent-channel interference can be reduced.By receive more effectively and efficiently RF signal, transmission RF signal or both, use the wireless device of beam formed antenna 341 can realize having the better performance of more harmonic(-)mean power consumption.

In figure 3, the switching device be such as associated with commutation circuit 347 can be used to select the reconfigurable parasitic antenna of beam formed antenna 341, perform the deflection of antenna pattern wave beam.Selected parasitic antenna and main radiating element can receive and transmission RF signal synergistically.Beam formed antenna 341 can be electrically connected with adaptive matching networks 342, can such as in real time, close in real time, in non real-time, periodically, aperiodically or its combination in any ground use adaptive matching networks 342 with the input impedance of matched beam forming antennas 341, the reflection improving power transimission and reduce from beam formed antenna 341.In addition, can such as in real time, close in real time, in non real-time, periodically, aperiodically or its combination in any ground use adaptive matching networks 342, to estimate the input impedance of beam formed antenna 341.Transceiver 305 can comprise transmitter, receiver or both.The input of transceiver 305 can be RF signal, and this RF signal is converted to the signal of telecommunication via beam formed antenna 341 from electromagnetic signal.The output of transceiver 305 can be baseband signal or intermediate frequency (" IF ") signal.On the uplink, the input of transceiver 305 can be RF signal, and this RF signal can be converted to the signal of telecommunication via beam formed antenna 341 from electromagnetic signal.The output of transceiver 305 can be baseband signal or intermediate frequency (" IF ") signal.Similarly, on uplink, the input of transceiver 305 can be baseband signal or IF signal.The output of transceiver 305 can be RF signal, and this RF signal can be converted to electromagnetic signal by beam formed antenna 341 from the signal of telecommunication.Such as used wireless communication system is depended in the detailed design of transceiver 305.

In the present example, use detector 344 may be used for determining such as wireless device towards, operator scheme, operating environment or its combination in any, this can be used for determining upgrading beam formed antenna 341, the antenna pattern wave beam of adaptive beam formed antenna 341 or both.Use detector 344 can receive such as from the signal of adaptive matching networks 342, the signal from transceiver 305, the signal carrying out sensor 323, other signals or its combination in any.Use detector 344 can pass through to identify the change of the following, determine the operating environment of wireless device: such as, the received signal strength of beam formed antenna 341, use that the direction of such as accelerometer determination wireless device is aimed at, the input impedance of the propagation characteristic of Received signal strength, beam formed antenna 341, other information or its combination in any.

Such as, use detector 344 to use the direction of the call treatment state of wireless device, wireless device is aimed at, the change of beam formed antenna 341 input impedance, other factors or its combination in any, during voice call, determine that wireless device is near user's ear.Such as, use detector 344 can from transducer 323 Received signal strength, and this signal designation wireless device is that general horizontal direction is aimed at, and this is consistent with the placement of user during voice call to wireless device.In addition, controller 303 can to the call treatment state using detector 344 to provide such as wireless device, such as voice call state.In addition, use detector 344 that adaptive matching networks 342 can be used to monitor the change of the input impedance of beam formed antenna 341, it may be used for determining the health of such as wireless device near user.Determining that such as wireless device is after the ear of user during audio call, controller 303 can one or more reconfigurable parasitic antenna of switching-beam forming antennas 341, to deflect antenna pattern wave beam to make it away from the health of user.

In figure 3, controller 303 can by using the change of the following, determine the antenna pattern wave beam upgrading beam formed antenna 341: such as, the received signal strength of beam formed antenna 341, the direction aligning of wireless device, the propagation characteristic via the Received signal strength of beam formed antenna 341, the input impedance using the beam formed antenna 341 of adaptive matching networks 342 or its combination in any.In another embodiment, controller 303 can measure multiple received signal strengths of beam formed antenna 341, and wherein each measured value is corresponding to the main radiating element with one or more different reconfigurable parasitic antenna.In addition, controller 303 can, by such as comparing the received signal strength of the beam formed antenna of one or more this received signal strength and current configuration, be determined to deflect beam formed antenna 341.

Fig. 4 shows the block diagram of another embodiment of the beam forming antenna systems 400 of the wireless device according to each scheme set forth here.In the diagram, system 400 can comprise beam formed antenna 441, adaptive matching networks 442, transceiver 405, use detector 444, transducer 423, controller 403, commutation circuit 447, other elements or its combination in any.Beam formed antenna 441 can comprise the main radiating element 450 with one or more secondary parasite element 451a to 451e.In this embodiment, main radiating element 450 is dipoles.In addition, there are five reconfigurable parasitic antennas, wherein each reconfigurable parasitic antenna 451a to 451e is dipole.In another embodiment, main radiating element and reconfigurable parasitic antenna are monopoles.Importantly recognize, the combination in any of main radiating element and reconfigurable parasitic antenna forms beam formed antenna, and it can carry out radiation with particular characteristics.In addition, the combination in any of main radiating element and reconfigurable parasitic antenna can be electrically connected, electric coupling or both.Therefore, main radiating element can physically be connected with the combination in any of reconfigurable parasitic antenna or physically not connect.

In a definition, dipole antenna is the omni-directional wireless radio antenna with apex drive driving element, and it can be made with such as simple copper cash.In addition, in a definition, unipole antenna is that the half of dipole antenna is replaced with the angle substantially vertical with this unipole antenna the omni-directional wireless radio antenna that ground plane formed, if wherein ground plane is enough large, this monopole can play the effect of dipole.The length of radiant element (such as monopole) can be typically short as the quarter-wave of desired resonant frequency.It will be understood by those skilled in the art that the length of radiant element of the present disclosure is not limited to the quarter-wave of desired resonant frequency, and other length can be selected, the half-wavelength of such as desired resonant frequency.Similarly, the length of radiant element (such as dipole) can be typically short as the half-wavelength of desired resonant frequency.

Beam formed antenna 441 can lead to the electromagnetic antenna pattern beam 461a to 461e from beam formed antenna 441 radiation, transmits, Received signal strength or both quality to improve.Such as, when the overlay area through base station, beam formed antenna 441 can deflect electromagnetic antenna pattern beam 461a to 461e adaptively makes it towards this base station.Such as, controller 403 host age preference element 451a.In this configuration, main radiating element 450 and parasitic antenna 451a transmitting antenna pattern beam synergistically on the direction consistent with antenna pattern wave beam 461a.In another example, any reconfigurable parasitic antenna 451a to 451e do not selected by controller 403.In this configuration, main radiating element 450 provides omni-beam.In another example, reconfigurable parasitic antenna 451a to 451b selected by controller 403.In this configuration, main radiating element 450 and the direction of reconfigurable parasitic antenna 451a to 451b between antenna pattern wave beam 461a and 461b provide antenna pattern wave beam.In addition, beam formed antenna 441 can lead the user that makes it away from the wireless device be associated, to reduce the amount of this user's absorption of electromagnetic energy to antenna pattern wave beam 451a to 451e.Equally, by the reception antenna leading to make it towards such as base station to the antenna pattern wave beam 451a to 451e of beam formed antenna 441, the amount of the interference that other wireless devices receive can be reduced.By receive more effectively and efficiently RF signal, transmission RF signal or both, use the wireless device of beam formed antenna 441 can realize better performance and lower power consumption.Importantly recognize, the combination in any of reconfigurable parasitic antenna can use together with main radiating element.In addition, the major component of any number and reconfigurable parasitic antenna can be used.Such as, two main radiating element may be used for providing such as polarization diversity.In addition, six reconfigurable parasitic antennas can use together with two main radiating element, to provide antenna pattern wave beam in a predetermined direction synergistically.

In the diagram, the switching device be such as associated with commutation circuit 447 can be used to select parasitic antenna 451a and 451b of beam formed antenna 441, perform the self adaptation deflection of antenna pattern wave beam.Selected parasitic antenna 451a and 451b and main radiating element 450 can receive and transmission RF signal synergistically.Such as, multiple reconfigurable parasitic antenna 451a and 451b (such as monopole, dipole or both) can continuously and be evenly distributed in main radiating element 450 around.Can switch adaptively this parasitic antenna 451a and 451b with main radiating element 450 collaborative work, deflect antenna pattern wave beam adaptively.Importantly recognize, the beam formed antenna configuration that the disclosure describes also can provide polarization diversity, frequency diversity, multiband operation, broadband operation or its combination in any.In addition, persons of ordinary skill in the art will recognize that the much different antenna system of existence, structure and configuration, it can support the beam forming function described by the disclosure.

In the present example, beam formed antenna 441 can be electrically connected with adaptive matching networks 442, after adaptive matching networks 442 can be used, for example, in the parasitic antenna or multiple parasitic antenna being switched to expectation, the input impedance of matched beam forming antennas 441, with the reflection improving power transimission and reduce from beam formed antenna 441.In addition, adaptive matching networks 442 may be used for the input impedance estimating beam formed antenna 441.Transceiver 405 can comprise transmitter, receiver or both.On the uplink, the input of transceiver 405 can be RF signal, and this RF signal can be converted to the signal of telecommunication via beam formed antenna 441 from electromagnetic signal.The output of transceiver 405 can be baseband signal or intermediate frequency (" IF ") signal.Similarly, on uplink, the input of transceiver 405 can be baseband signal or IF signal.The output of transceiver 405 can be RF signal, and this RF signal can be converted to electromagnetic signal by beam formed antenna 441 from the signal of telecommunication.Used wireless communication system is depended in the detailed design of transceiver 405.

In the diagram, use detector 444 to may be used for the operating environment determining wireless device, it can be used for the antenna pattern wave beam of adaptation or control beam formed antenna 441 further.Use detector 444 can receive such as from the signal of adaptive matching networks 442, the signal from transceiver 405, the signal carrying out sensor 423, other signals or its combination in any.Use detector 444 can pass through to identify the change of the following, determine the operating environment of wireless device: such as, the propagation characteristic of the received signal strength of beam formed antenna 441, the direction aligning of wireless device, Received signal strength, the input impedance of beam formed antenna 441, other information or its combination in any.

Such as, use detector 444 to use the direction of the call treatment state of wireless device, wireless device is aimed at, the change of beam formed antenna 441 input impedance, other factors or its combination in any, during voice call, determine that wireless device is near user's ear.Such as, use detector 444 can from transducer 423 Received signal strength, and this signal designation wireless device is that general horizontal direction is aimed at, and this is consistent with the placement of user during voice call to wireless device.In addition, controller 403 can to the call treatment state using detector 444 to provide such as wireless device, such as voice call state.In addition, use detector 444 that adaptive matching networks 442 can be used to monitor the change of the input impedance of beam formed antenna 441, this may be used for determining the health of such as wireless device near user.Determining that wireless device is after the ear of user during audio call, controller 403 can one or more reconfigurable parasitic antenna 451a and 451b of switching-beam forming antennas 441, makes it away from the health of user to deflect antenna pattern wave beam.

In the diagram, controller 403 can by using the change of the following, determine the antenna pattern wave beam upgrading beam formed antenna 441: such as, the received signal strength of beam formed antenna 441, the direction aligning of wireless device, the propagation characteristic via the Received signal strength of beam formed antenna 441, the input impedance using the beam formed antenna 441 of adaptive matching networks 442 or its combination in any.In another embodiment, controller 403 can surveyingpin to multiple received signal strengths of beam formed antenna 441, wherein each measured value can corresponding to the main radiating element 450 with one or more different reconfigurable parasitic antenna 451a and 451b.In addition, controller 403 can, by such as comparing the received signal strength of the beam formed antenna of one or more this received signal strength and current configuration, be determined to deflect beam formed antenna 441 adaptively.If one or more this received signal strength is much larger than the received signal strength of current configuration beam formed antenna, then controller 403 can be switched to one or more reconfigurable parasitic antenna 451a and 451b corresponding with larger received signal strength by using commutation circuit 447.

Fig. 5 shows the block diagram of another embodiment of the beam forming antenna systems 500 of the wireless device according to each scheme set forth here.In Figure 5, system 500 can comprise beam formed antenna 541, adaptive matching networks 542, transceiver 505, use detector 544, transducer 523, controller 503, commutation circuit 547, other elements or its combination in any.Beam formed antenna 541 can comprise the main radiating element 552 with one or more reconfigurable parasitic antenna 553a to 451e.In this embodiment, main radiating element 552 is paster antennas.In addition, each in reconfigurable parasitic antenna 553a to 451e is radiation band or surface mount elements.

Paster antenna is miniaturized antenna irradiation structure typically, such as planar inverted-F antenna (" PIFA ").Due to its low section (low profile), surface profile (surfaceprofile) can be met and shape and size unrestricted, paster antenna is widely used in wireless device.Patch antenna polarizations can be linear or ellipse, has the main polarization component parallel with the surface of poliarizing antenna.The operating characteristic of paster antenna is established primarily of its shape and size.Paster antenna typically uses printed circuit technique manufacture, and integrates with printed circuit board (PCB) (" PCB ").Paster antenna is typically electrically connected with ground area, and wherein ground area is typically formed on PCB or is formed in the pcb.Paster antenna typically separates with ground area and is parallel to ground area, and is typically positioned near other electronic building bricks, ground plane and signal traces, and this may affect design and the performance of antenna.In addition, typically think that paster antenna is lightweight, small-sized and be relatively easy to manufacture and be integrated in wireless device.

One or more groove can be included in the radiation component of antenna by patch antenna design.The design needs of specific paster antenna are depended in the selection of the position of groove, shape, profile and length.In patch antenna design, the function of groove comprises: the subset radiation component of single band paster antenna being physically divided into the radiation component for multiband operation; There is provided imaginary loading to revise the resonance frequency of radiation component; And control the polarization characteristic of Multi-band patch antenna.Except groove, the radiation component of paster antenna can have stub (stub) parts, and it is made up of the stub at radiation component end usually.The function of stub parts comprises provides imaginary loading to revise the resonance frequency of radiation component.

Beam formed antenna 541 can lead to the electromagnetic beam from beam formed antenna 541 radiation, transmits, Received signal strength or both quality to improve.Such as, when the overlay area through base station, beam formed antenna 541 can deflect antenna pattern wave beam adaptively to make it towards this base station.In addition, beam formed antenna 541 can lead to antenna pattern wave beam the user that makes it away from the wireless device be associated, to reduce the amount of the electromagnetic energy that this user absorbs.Equally, by the reception antenna leading to make it towards such as base station to the antenna pattern wave beam of beam formed antenna 541, the amount of the interference that other wireless devices receive can be reduced.By receive more effectively and efficiently RF signal, transmission RF signal or both, use the wireless device of beam formed antenna 541 can realize lower power consumption.

In Figure 5, the switching device be such as associated with commutation circuit 547 can be used to select the reconfigurable parasitic antenna of beam formed antenna 541, perform the deflection of antenna pattern wave beam.Selected parasitic antenna and main radiating element can receive and transmission RF signal synergistically.Such as, can switch adaptively multiple radiation strip member 553a to 553e with paster antenna 552 collaborative work, deflect antenna pattern wave beam.Importantly recognize, above-mentioned beam formed antenna configuration also can provide polarization diversity, frequency diversity, multiband operation, broadband operation or its combination in any.

In the present example, beam formed antenna 541 can be electrically connected with adaptive matching networks 542, adaptive matching networks 542 may be used for the input impedance of matched beam forming antennas 541, with the reflection improving power transimission and reduce from beam formed antenna 541.In addition, adaptive matching networks 542 may be used for the input impedance estimating beam formed antenna 541.Transceiver 505 can comprise transmitter, receiver or both.On the uplink, the input of transceiver 505 can be RF signal, and this RF signal can be converted to the signal of telecommunication via beam formed antenna 541 from electromagnetic signal.The output of transceiver 505 can be baseband signal or intermediate frequency (" IF ") signal.Similarly, on uplink, the input of transceiver 505 can be baseband signal or IF signal.The output of transceiver 505 can be RF signal, and this RF signal can be converted to electromagnetic signal by beam formed antenna 541 from the signal of telecommunication.Used wireless communication system is depended in the detailed design of transceiver 505.

In Figure 5, use detector 544 to may be used for the operating environment determining wireless device, it can be used for the antenna pattern wave beam of further adaptive beam formed antenna 541.Use detector 544 can receive the signal from adaptive matching networks 542, the signal from transceiver 505, the signal carrying out sensor 523, other signals or its combination in any.Use detector 544 can: by identifying the change of the following, determine the operating environment of wireless device: such as, the propagation characteristic of the received signal strength of beam formed antenna 541, the direction aligning of wireless device, Received signal strength, the input impedance of beam formed antenna 541, other information or its combination in any.

Such as, use detector 544 to use the direction of the call treatment state of wireless device, wireless device is aimed at, the change of beam formed antenna 541 input impedance, other factors or its combination in any, during voice call, determine that wireless device is near user's ear.Such as, use detector 544 can from transducer 523 Received signal strength, and this signal designation wireless device is that general horizontal direction is aimed at, and this is consistent with the placement of user during voice call to wireless device.In addition, controller 503 can to the call treatment state using detector 544 to provide such as wireless device, such as voice call state.In addition, use detector 544 that adaptive matching networks 542 can be used to monitor the change of the input impedance of beam formed antenna 541, this may be used for determining that wireless device is after the health of user, initiates adaptive beam deflecting operation.Determining that wireless device is after the ear of user during audio call, controller 503 can one or more radiation strip member 553a to 553e of switching-beam forming antennas 541, makes it away from the health of user to deflect antenna pattern wave beam.

In Figure 5, controller 503 can by using the change of the following, determine the antenna pattern wave beam upgrading beam formed antenna 541: such as, the received signal strength of beam formed antenna 541, the direction aligning of wireless device, the propagation characteristic via the Received signal strength of beam formed antenna 541, the input impedance using the beam formed antenna 541 of adaptive matching networks 542 or its combination in any.In another embodiment, controller 503 can measure multiple received signal strengths of beam formed antenna 541, and wherein each measured value is corresponding to the main radiating element with one or more different reconfigurable parasitic antenna.In addition, controller 503 can, by such as comparing the received signal strength of the beam formed antenna of one or more this received signal strength and current configuration, be determined to deflect beam formed antenna 541.

Fig. 6 is each scheme according to setting forth here, uses reconfigurable parasitic antenna to carry out the flow chart of an embodiment of the method 600 of adaptive beam formed antenna.In figure 6, method 600 can start from square frame 681, and wherein method 600 can use adaptive matching networks to carry out the input impedance of compute beam forming antennas, and wherein adaptive matching networks is electrically connected with beam formed antenna.In square frame 682, method 600 can determine that the input impedance of beam formed antenna is whether outside tolerance limit.Tolerance limit can be reflected in the changeability of the input impedance of beam formed antenna in static environment.Such as, tolerance limit can be associated with the change of the input impedance of beam formed antenna in specific environment.The quality of the design of beam formed antenna, the quality for the assembly of beam formed antenna, ambient conditions, other factors or its combination in any can affect the tolerance limit of beam formed antenna.

If input impedance is outside the tolerance limit of beam formed antenna, in square frame 683, method 600 can use every operating environment determining wireless device as follows: such as, and the received signal strength of beam formed antenna, the propagation characteristic via the Received signal strength of beam formed antenna, the input impedance of beam formed antenna, the speed of wireless device, the delay expansion of beam formed antenna received signal, the direction of wireless device are aimed at, other factors or its combination in any.Method 600 can use transducer (such as accelerometer) to determine, and the direction of such as wireless device is aimed at, the acceleration of the speed of wireless device, wireless device, other factors or its combination in any.In another embodiment, method 600 can use transducer (such as video camera) to monitor consecutive image, with determine wireless device whether near or close to the ear of user.

In figure 6, in square frame 684, method 600 can use such as input impedance, predetermined input impedance observation watch, the operating environment distinguished, other factors or its combination in any, selects the set of one or more reconfigurable parasitic antenna.Such as, the entry in the measurement input impedance of beam formed antenna and predetermined input impedance observation watch can compare by method 600, to select one or more reconfigurable parasitic antenna.By catching the measured value of the input impedance of beam formed antenna under various circumstances and condition, predetermined input impedance observation watch can be obtained.Various circumstances and condition can be: such as, and user or object appear near the beam formed antenna of wireless device; RF signal is launched from specific direction towards the beam formed antenna of wireless device; Communication environments; Other environment or situation; Its combination in any.In square frame 689, method 600 can by the set of one or more reconfigurable parasitic antenna is electrically connected with main radiating element, electric coupling or both, renewal beam formed antenna.Calculated resistance value can be used, optimize the input resistant matching of beam formed antenna adaptively for maximum power transmission, wherein this beam formed antenna be electrically connected with parasitic antenna selected by one or more by main radiating element, electric coupling or both and formed.

Fig. 7 is each scheme according to setting forth here, uses reconfigurable parasitic antenna to carry out the flow chart of an embodiment of the method 700 of adaptive beam formed antenna.In the figure 7, method 700 can start from square frame 781, and wherein method 700 can use adaptive matching networks to carry out the input impedance of compute beam forming antennas, and wherein adaptive matching networks is electrically connected with beam formed antenna.In square frame 782, method 700 can determine that the input impedance of beam formed antenna is whether outside tolerance limit.Tolerance limit can be reflected in the changeability of the input impedance of beam formed antenna in such as static environment.Such as, tolerance limit can be associated with the change of the input impedance of beam formed antenna in specific environment.The quality of the design of beam formed antenna, the quality for the assembly of beam formed antenna, ambient conditions, other factors or its combination in any can affect the tolerance limit of beam formed antenna.

If input impedance is outside the tolerance limit of beam formed antenna, in square frame 783, method 700 can use every operating environment determining wireless device as follows: such as, and the received signal strength of beam formed antenna, the propagation characteristic via the Received signal strength of beam formed antenna, the input impedance of beam formed antenna, the speed of wireless device, the delay expansion of beam formed antenna received signal, the direction of wireless device are aimed at, other factors or its combination in any.Method 700 can use transducer (such as accelerometer) to determine, and the direction of such as wireless device is aimed at, the acceleration of the speed of wireless device, wireless device, other factors or its combination in any.In another embodiment, method 700 can use transducer (such as video camera) to monitor consecutive image, with determine wireless device whether near or close to the ear of user.

In the figure 7, in square frame 784, method 700 can use such as input impedance, predetermined input impedance observation watch, the operating environment distinguished, other factors or its combination in any, selects a part for one or more reconfigurable parasitic antenna.Such as, the entry in the measurement input impedance of beam formed antenna and predetermined input impedance observation watch can compare by method 700, to select one or more reconfigurable parasitic antenna.By catching the measured value of the input impedance of beam formed antenna under various circumstances and condition, predetermined input impedance observation watch can be obtained.Various circumstances and condition can be: such as, occurs user or object; RF signal is launched from specific direction towards beam formed antenna; Communication environments; Other situations; Or its combination in any.

In square frame 785, method 700 can use adaptive matching networks, for each part of reconfigurable parasitic antenna, and the input impedance of compute beam forming antennas.In square frame 786, method 700 can be used in the input impedance calculated in square frame 785, determines whether to consider that more than one parasitic antenna configures.If consider that more than one parasitic antenna configures, then at square frame 787, method 700 can for the main radiating element with the combination in any that parasitic antenna configures, the received signal strength of compute beam forming antennas.In square frame 788, method 700 can select one or more parasitic antenna configuration with maximum received signal strength.In square frame 789, method 700 can by using such as commutation circuit, one or more selected parasitic antenna configuration is electrically connected with main radiating element, electric coupling or both, upgrade beam formed antenna.Input impedance value can be calculated by using adaptive matching networks, upgrade the input resistant matching of antenna adaptively, improve the power transimission of beam formed antenna, wherein this antenna be electrically connected with parasitic antenna selected by one or more by main radiating element, electric coupling or both and formed.

Fig. 8 is each scheme according to setting forth here, uses reconfigurable parasitic antenna to carry out the flow chart of another embodiment of the method 800 of adaptive beam formed antenna.In fig. 8, method 800 can start from square frame 881, and wherein method 800 can use adaptive matching networks to carry out the input impedance of compute beam forming antennas, and wherein adaptive matching networks is electrically connected with beam formed antenna.In square frame 882, method 800 can determine that the input impedance of beam formed antenna is whether outside tolerance limit.Tolerance limit can be reflected in the changeability of the input impedance of beam formed antenna in static environment.Such as, tolerance limit can be associated with the change of the input impedance of beam formed antenna in specific environment.The quality of the design of beam formed antenna, the quality for the assembly of beam formed antenna, ambient conditions, other factors or its combination in any can affect the tolerance limit of beam formed antenna.

If input impedance is outside the tolerance limit of beam formed antenna, in square frame 883, method 800 can use every operating environment determining wireless device as follows: such as, and the received signal strength of beam formed antenna, the propagation characteristic via the Received signal strength of beam formed antenna, the input impedance of beam formed antenna, the speed of wireless device, the delay expansion of beam formed antenna received signal, the direction of wireless device are aimed at, other factors or its combination in any.Method 800 can use transducer (such as accelerometer) to determine, and the direction of such as wireless device is aimed at, the acceleration of the speed of wireless device, wireless device, other factors or its combination in any.In another embodiment, method 800 can use transducer (such as video camera) to monitor consecutive image, with determine wireless device whether near or close to the ear of user.

In fig. 8, in square frame 884, method 800 can use such as input impedance, predetermined input impedance observation watch, the operating environment distinguished, other factors or its combination in any, selects the set of one or more reconfigurable parasitic antenna.Such as, the entry in the measurement input impedance of beam formed antenna and predetermined input impedance observation watch can compare by method 800, to select one or more reconfigurable parasitic antenna.By catching the measured value of the input impedance of beam formed antenna under various circumstances and condition, predetermined input impedance observation watch can be obtained.Various circumstances and condition can be: such as, occurs user or object; RF signal is launched from specific direction to beam formed antenna; The communication environments of wireless device; Other situations; Or its combination in any.In square frame 889, method 800 can by the set of one or more reconfigurable parasitic antenna is electrically connected with main radiating element, electric coupling or both, renewal beam formed antenna.After renewal beam formed antenna, at square frame 890, method 800 can use such as adaptive matching networks, recalculates the input impedance upgrading beam formed antenna.Then at square frame 891, the input impedance of adaptive matching networks and the same calculating having upgraded beam formed antenna can match by method 900.

Fig. 9 is each scheme according to setting forth here, uses reconfigurable parasitic antenna to carry out the flow chart of another embodiment of the method 900 of adaptive beam formed antenna.In fig .9, method 900 can start from square frame 980, wherein method 900 can, by such as determining the change of the following, determine whether to upgrade beam formed antenna: the received signal strength of beam formed antenna, the direction of wireless device are aimed at, via the propagation characteristic of the Received signal strength of beam formed antenna, the input impedance of beam formed antenna or its combination in any.In another embodiment, method 900 can measure multiple received signal strengths of beam formed antenna, and wherein each measured value is corresponding to the main radiating element of beam formed antenna with one or more different reconfigurable parasitic antenna.In addition, method 900 can, by determining one in multiple received signal strengths corresponding with the customized configuration of one or more reconfigurable parasitic antenna with the main radiating element received signal strength whether being greater than the beam formed antenna of current configuration, be determined to upgrade beam formed antenna.If one in the multiple received signal strength received signal strength being greater than the beam formed antenna of current configuration, then method 900 can upgrade beam formed antenna.

In square frame 981, method 900 can use adaptive matching networks to carry out the input impedance of compute beam forming antennas, and wherein adaptive matching networks is electrically connected with beam formed antenna.In square frame 982, method 900 can determine that the input impedance of beam formed antenna is whether outside tolerance limit.Tolerance limit can be reflected in the changeability of the input impedance of beam formed antenna in specific environment (such as static environment).Such as, tolerance limit can be associated with the change of the input impedance of beam formed antenna in specific environment.The quality of the design of beam formed antenna, the quality for the assembly of beam formed antenna, ambient conditions, other factors or its combination in any can affect the tolerance limit of beam formed antenna.

If input impedance is outside the tolerance limit of beam formed antenna, in square frame 983, method 900 can use every operating environment determining wireless device as follows: such as, and the direction of the speed of the propagation characteristic of received signal strength, Received signal strength, the input impedance of beam formed antenna, wireless device, the delay expansion of beam formed antenna received signal, wireless device is aimed at, other factors or its combination in any.Method 900 can use transducer (such as accelerometer) to determine, and the direction of such as wireless device is aimed at, the acceleration of the speed of wireless device, wireless device, other factors or its combination in any.In another embodiment, method 900 can use transducer (such as video camera) to monitor consecutive image, with determine wireless device whether near or close to the ear of user.

In fig .9, in square frame 984, method 900 can use the measurement input impedance of such as beam formed antenna, predetermined input impedance observation watch, the operating environment distinguished, other factors or its combination in any, selects a part for one or more reconfigurable parasitic antenna.Such as, the entry in the measurement input impedance of beam formed antenna and predetermined input impedance observation watch can compare by method 900, to select the set of one or more reconfigurable parasitic antenna.By catching the measured value of the input impedance of beam formed antenna under various circumstances and condition, predetermined input impedance observation watch can be obtained.Various circumstances and condition can be: such as, occurs user or object; RF signal is launched from specific direction to beam formed antenna; The communication environments of wireless device; Other situations; Or its combination in any.In square frame 988, method 900 can by the set of one or more reconfigurable parasitic antenna is electrically connected with main radiating element, electric coupling or both, renewal beam formed antenna.

Figure 10 shows the block diagram of another embodiment of the beam forming antenna systems 1000 of the wireless device according to each scheme set forth here.In Fig. 10, system 1000 can comprise beam formed antenna 1041, adaptive matching networks 1042, transceiver 1005, use detector 1044, transducer 1023, controller 1003, commutation circuit 1047, other elements or its combination in any.Beam formed antenna 1041 can comprise the main radiating element 1050 with reconfigurable parasitic antenna 1051.In this embodiment, main radiating element 1050 is monopole or dipole, and reconfigurable parasitic antenna 1051 is monopole or dipole.

Under the normal running of wireless device, beam formed antenna can use main radiating element 1050 to produce omni-directional antenna pattern wave beam 1060.When such as wireless device is placed on user in one's ear time, beam formed antenna 1041 can lead to make it away from user to antenna pattern wave beam 1061, to reduce the amount of the electromagnetic energy absorbed by this user.The switching device be such as associated with commutation circuit 1047 can be used to select the parasitic antenna 1051 of beam formed antenna 1041, perform and make antenna pattern wave beam away from the guiding of user.Parasitic antenna 1051 and main radiating element 1050 can receive and transmission RF signal synergistically.

In the present example, beam formed antenna 1041 can be electrically connected with adaptive matching networks 1042, adaptive matching networks 1042 may be used for the input impedance of matched beam forming antennas 1041, with the reflection improving power transimission and reduce from beam formed antenna 1041.In addition, adaptive matching networks 1042 may be used for the input impedance estimating beam formed antenna 1041.Transceiver 1005 can comprise transmitter, receiver or both.On the uplink, the input of transceiver 1005 can be RF signal, and this RF signal can be converted to the signal of telecommunication via beam formed antenna 1041 from electromagnetic signal.The output of transceiver 1005 can be baseband signal or intermediate frequency (" IF ") signal.Similarly, on uplink, the input of transceiver 1005 can be baseband signal or IF signal.The output of transceiver 1005 can be RF signal, and this RF signal can be converted to electromagnetic signal by beam formed antenna 1041 from the signal of telecommunication.Used wireless communication system is depended in the detailed design of transceiver 1005.

In Fig. 10, use detector 1044 to may be used for the operating environment determining wireless device, this can be used for the parasitic antenna 1051 determining when switching-beam forming antennas 1041.Use detector 1044 can receive the signal from adaptive matching networks 1042, the signal from transceiver 1005, the signal carrying out sensor 1023, other signals or its combination in any.Use detector 1044 can pass through to identify the change of the following, determine the operating environment of wireless device: such as, the propagation characteristic of the received signal strength of beam formed antenna 1041, the direction aligning of wireless device, Received signal strength, the input impedance of beam formed antenna 1041, other information or its combination in any.

Such as, use detector 1044 to use the direction of the call treatment state of wireless device, wireless device is aimed at, the change of beam formed antenna 1041 input impedance, other factors or its combination in any, during voice call, determine that wireless device is near user's ear.Such as, use detector 1044 can from transducer 1023 Received signal strength, and this signal designation wireless device is that general horizontal direction is aimed at, and this is consistent with the placement of user during voice call to wireless device.In addition, controller 1003 can to the call treatment state using detector 1044 to provide such as wireless device, such as voice call state.In addition, use detector 1044 that adaptive matching networks 1042 can be used to monitor the change of the input impedance of beam formed antenna 1041, it may be used for determining the health of such as wireless device near user.Determining that wireless device is after the ear of user during audio call, controller 1003 can the parasitic antenna 1051 of switching-beam forming antennas 1041, makes it away from the health of user to deflect antenna pattern wave beam.

Figure 11 shows the simulation result of the performance of an embodiment of the beam forming antenna systems 400 according to the various schemes set forth here, and wherein result shows the measurement input impedance of beam formed antenna 441 on the time of user's operate wireless device in audio call.Illustrate whole by 1100 instructions.The number of the discrete time sampling of the measurement input impedance of beam formed antenna 441 illustrates on abscissa 1101.The measurement input impedance of beam formed antenna 441 illustrates on abscissa 1102.Figure 110 3 shows the value of real part of the measurement input impedance of beam formed antenna 441.Figure 110 4 shows the imaginary values of the measurement input impedance of beam formed antenna 441.In simulations, beam formed antenna 441 uses half wavelength dipole for main radiating element 450, and uses 5 half wavelength dipole for reconfigurable parasitic antenna 451a to 451e.Each in 5 reconfigurable parasitic antenna 451a to 451e is 1/10th of the wavelength of main radiating element 450.In addition, the antenna gain of main radiating element 450 is 1.65dB, and is 4.99dB with the antenna gain of a main radiating element be coupled in reconfigurable parasitic antenna 451a to 451e.Emulation performs under 900MHz frequency.

Show and describe exemplary embodiment, those of ordinary skill in the art can realize the further adaptation of method, apparatus and system described herein under the prerequisite not deviating from the scope of the present disclosure by suitable amendment.Be referred to some this possible amendments, other amendments it will be apparent to those skilled in the art that.Such as, above-mentioned example, embodiment etc. are schematic, instead of requisite.Therefore, the scope of the present disclosure should be considered according to appended claims, and the details of the structure being understood to be not limited to illustrate in the specification and illustrated in the drawings and describe, operation and function.

As mentioned above, described the aspect comprising following elaboration is disclosed.

Claims

1. control a method for the antenna pattern of beam formed antenna in wireless device, comprising:

Adaptive matching networks is used to calculate the input impedance of described beam formed antenna, wherein said adaptive matching networks is electrically connected with described beam formed antenna, and wherein said beam formed antenna comprises main radiating element and one or more reconfigurable parasitic antenna, and described main radiating element and described reconfigurable parasitic antenna receive synergistically, launch or receive and emitting radio frequency signal;

Determine that the input impedance of calculated described beam formed antenna is outside tolerance limit;

Distinguish the environment of described wireless device;

Use the input impedance of the described beam formed antenna calculated, predetermined input impedance observation watch, institute's environment that distinguishes or its combination in any, select a part for described reconfigurable parasitic antenna; And

By the selected portion of described reconfigurable parasitic antenna is electrically connected with described main radiating element, electric coupling or be electrically connected and electric coupling, upgrade described beam formed antenna, to make described antenna pattern deflect into adaptively in preferred orientations,

Use described adaptive matching networks, recalculate the input impedance of upgraded beam formed antenna; And

Adjust described adaptive matching networks, with mate the described input impedance of renewal beam formed antenna.

2. method according to claim 1, also comprises:

Use described adaptive matching networks, for the described main radiating element of each reconfigurable parasitic antenna with described part, calculate the input impedance of described beam formed antenna;

Determine the subset of the described part of reconfigurable parasitic antenna, to mate calculated input impedance;

For the described main radiating element with each reconfigurable parasitic antenna in described subset, calculate the received signal strength of described beam formed antenna; And

Select the one or more reconfigurable parasitic antenna in described subset with maximum received signal strength.

3. according to the method one of claim 1 to 2 Suo Shu, wherein, described main radiating element and described reconfigurable parasitic antenna are monopole or dipole.

4. according to the method one of claim 1 to 2 Suo Shu, wherein, described main radiating element is paster antenna and described reconfigurable parasitic antenna is one or more radiation strip member, and wherein said paster antenna is electrically connected with described radiation strip member, electric coupling or be electrically connected and electric coupling.

5. according to the method one of claim 1 to 2 Suo Shu, described in distinguish and comprise:

Identify the one or more change in the following: the direction of the received signal strength of described beam formed antenna, described wireless device is aimed at, via the propagation characteristic of the Received signal strength of described beam formed antenna, the input impedance of described beam formed antenna or its combination in any.

6., according to the method one of claim 1 to 2 Suo Shu, also comprise:

Determine to upgrade described beam formed antenna.

7. method according to claim 6, describedly determine that upgrading described beam formed antenna comprises:

Determine the one or more change in the following: the direction of the received signal strength of described beam formed antenna, described wireless device is aimed at, via the propagation characteristic of the Received signal strength of described beam formed antenna, the input impedance of described beam formed antenna or its combination in any.

8. method according to claim 6, describedly determine that upgrading described beam formed antenna comprises:

Surveyingpin is to multiple received signal strengths of described beam formed antenna, and wherein each measured value is corresponding to the described main radiating element with one or more different reconfigurable parasitic antenna;

Determine that one of described multiple received signal strength is greater than the described received signal strength for described beam formed antenna.

9. according to the method one of claim 1 to 2 Suo Shu, wherein, described main radiating element is used for providing omni-directional antenna pattern wave beam.

10., for an antenna system for wireless device, comprising:

For generation of the beam formed antenna of antenna pattern wave beam, described beam formed antenna comprises:

Main radiating element, is electrically connected with adaptive matching networks, and wherein said adaptive matching networks is for mating the input impedance of described beam formed antenna;

One or more reconfigurable parasitic antenna, be electrically connected with described main radiating element, electric coupling or be electrically connected and electric coupling, and be electrically connected with commutation circuit, one or more for selecting in described reconfigurable parasitic antenna of wherein said commutation circuit, and described main radiating element and selected parasitic antenna receive synergistically, launch or receive and emitting radio frequency signal;

Transceiver, is electrically connected with described beam formed antenna, for transmitting, Received signal strength or transmitting and receiving signal;

Using detector, being electrically connected with described beam formed antenna and described transceiver, for distinguishing the environment of described wireless device; And

Controller, be electrically connected with described beam formed antenna, described use detector, described transceiver, described commutation circuit and described adaptive matching networks, with the antenna pattern wave beam of the described beam formed antenna of adaptation, wherein said controller is arranged to:

Use described adaptive matching networks, determine that the input impedance of described beam formed antenna is outside tolerance limit;

Use described use detector, distinguish the environment of described wireless device;

Use the input impedance of described beam formed antenna, predetermined observation watch, institute's environment that distinguishes or its combination in any, select a part for described reconfigurable parasitic antenna;

By using, the selected portion of described reconfigurable parasitic antenna is electrically connected with described main radiating element by described commutation circuit, electric coupling or be electrically connected and electric coupling, upgrade described beam formed antenna, deflect into adaptively in preferred orientations to make described antenna pattern;

Described adaptive matching networks is updated to the described input impedance of upgraded beam formed antenna.

11. antenna systems according to claim 10, wherein, described use detector also comprises:

Transducer, for determining direction aligning, the speed of described wireless device, the acceleration of described wireless device or its combination in any of described wireless device.

12. antenna systems according to claim 10, wherein, described controller is also arranged to:

For the described main radiating element of combination with reconfigurable parasitic antenna in described subset, calculate the received signal strength of described beam formed antenna; And

With the described combination of described main radiating element, select the one or more reconfigurable parasitic antenna in described subset with maximum received signal strength.

13. according to claim 10 to the antenna system one of 12 described, and wherein, described main radiating element and described reconfigurable parasitic antenna are monopole or dipole.

14. according to claim 10 to the antenna system one of 12 described, and wherein, described main radiating element is paster antenna, and described reconfigurable parasitic antenna is radiation strip member.

15. according to claim 10 to the antenna system one of 12 described, and wherein said use detector is also arranged to:

16. according to claim 10 to the antenna system one of 12 described, and wherein, described controller is also arranged to:

By using the one or more change in the following, determine to upgrade described beam formed antenna: the direction of the received signal strength of described beam formed antenna, described wireless device is aimed at, via the propagation characteristic of the Received signal strength of described beam formed antenna, the input impedance of described beam formed antenna or its combination in any.

17. according to claim 10 to the antenna system one of 12 described, and wherein, described controller is also arranged to:

Determine to upgrade described beam formed antenna by following operation: surveyingpin is to multiple received signal strengths of described beam formed antenna, and wherein each measured value is corresponding to the described main radiating element with one or more different reconfigurable parasitic antenna; And determine that one of described multiple received signal strength is greater than the described received signal strength for described beam formed antenna.

18. according to claim 10 to the antenna system one of 12 described, and wherein, described main radiating element is used for providing omni-directional antenna pattern wave beam.

19. according to claim 10 to the antenna system one of 12 described, wherein said controller real-time operation.

20. 1 kinds, for the antenna system of wireless device, comprising:

One or more reconfigurable parasitic antenna, be electrically connected with described main radiating element, electric coupling or be electrically connected and electric coupling, and be electrically connected with commutation circuit, one or more for selecting in described reconfigurable parasitic antenna of wherein said commutation circuit, and described main radiating element and described selected parasitic antenna receive synergistically, launch or receive and emitting radio frequency signal;

Transducer, for detecting direction aligning, the speed of described wireless device, the acceleration of described wireless device or its combination in any of described wireless device; And

Controller, is connected with described beam formed antenna, described transceiver, described commutation circuit, described adaptive matching networks and described sensor electrical, and with the described antenna pattern wave beam of the described beam formed antenna of adaptation, wherein said controller is arranged to:

Use described beam formed antenna, described transceiver, described commutation circuit, described adaptive matching networks, described transducer or its combination in any, distinguish the environment of described wireless device;

Use the input impedance of described beam formed antenna, predetermined observation watch, institute's environment that distinguishes or its combination in any, select a part for described reconfigurable parasitic antenna; And

By using, the selected portion of described reconfigurable parasitic antenna is electrically connected with described main radiating element by commutation circuit, electric coupling or be electrically connected and electric coupling, upgrade described beam formed antenna, deflect into adaptively in preferred orientations to make described antenna pattern;

21. antenna systems according to claim 20, wherein said transducer is accelerometer.

22. antenna systems according to claim 20 or 21, wherein said transducer is camera.

23. 1 kinds of wireless devices, comprise according to claim 10 to the antenna system one of 22 described.